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We investigate the orbital evolution of the observed components of fragmented comet P/1994 P1 (Machholz 2), and of plausible debris orbits. The cometary orbit is currently quite stable because of its proximity to the 9:4 jovian mean motion resonance and its avoidance of Jupiter. Departures from this stable orbit could occur due to close approaches to one of the terrestrial planets, in particular t...

The orbital evolution of P/Machholz 2 and its debris